I have the worst nausea...what do I do?!

I’ve been taking Zofran as needed, and b6/Unisom but it’s not working at all! I can barely eat, barely sleep, I’m seriously miserable like to the point I want this all to go away I cannot function. No vomiting but bad nausea. Plus I’m so scared of vomiting so I don’t know what to do. I want to call my doctor and ask for a better medication or anyone know any at home remedies?! Thanks!